Propagating can help you grow multiple succulents from one succulent if done properly. Stem cuttings are also a great way to fix leggy string of pearls plants by propagating new plants from the etiolated stems. String of Pearls can thrive indoors as well as outdoors. The right soil is essential for String of Pearls. It must be properly watered. To achieve this type of soil, mix a specialized mix made for succulents or combine sand, perlite, and potting soil. Cacti need fast-draining soil, which typically contains larger particles like sand, gravel, perlite, and bark.